从选取器视图中获取选定值的功能

Question

I am having trouble creating a function that will return the selected value from a picker wheel on my app.

This is what I have so far:

@IBOutlet weak var lstPriority: UIPickerView!

// Array for picker wheel items
let lstPriorityOptions = ["Low", "Medium", "High"]

// Function to get selected value from picker wheel
public func GetSelected() -> String {
    let pickerView: UIPickerView
    let valueSelected = lstPriorityOptions[row] as String

    return valueSelected
}

// Button click event, this is where I will be calling the above function
@IBAction func btnAdd(_ sender: Any) {
    if txtNewItem.text != "" {
        let newToDoItem = ToDoItem(ToDoItemText: txtNewItem.text!, ToDoItemPriority: GetSelected())
        ToDoItemList.append(newToDoItem)

        txtNewItem.text = ""
    }
}

Answer 1

-(IBAction)doneYearPickerAction:(id)sender
{
    if ([strPickerSelectedYearIndex isEqualToString:@""]) {
        self.yearTxt.text = [yearArr objectAtIndex:0];
    }else{
        self.yearTxt.text = [yearArr objectAtIndex:[strPickerSelectedYearIndex intValue]];
    }
    // hides year pickerview
    [_yearPickerView setHidden: YES];
}